161 lines
6.1 KiB
HTML
161 lines
6.1 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Example: Using JDBCPopulate to create and populate a table" />
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<meta name="abstract" content="" />
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<meta name="description" content="" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="jdbcpopulateexample" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Example: Using JDBCPopulate to create and populate a table</title>
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</head>
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<body id="jdbcpopulateexample"><a name="jdbcpopulateexample"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Example: Using JDBCPopulate to create and populate a table</h1>
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<div><p></p>
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<div class="section"><div class="note"><span class="notetitle">Note:</span> Read the <a href="codedisclaimer.htm#codedisclaimer">Code
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example disclaimer</a> for important legal information.</div>
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<pre>//////////////////////////////////////////////////////////////////////////////////
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//
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// JDBCPopulate example. This program uses the IBM Toolbox for Java JDBC driver to
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// create and populate a table.
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//
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// Command syntax:
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// JDBCPopulate system collectionName tableName
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//
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// For example,
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// JDBCPopulate MySystem MyLibrary MyTable
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//
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//////////////////////////////////////////////////////////////////////////////////
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import java.sql.*;
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public class JDBCPopulate
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{
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// Strings to be added in the WORD column of the table.
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private static final String words[]
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= { "One", "Two", "Three", "Four", "Five",
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"Six", "Seven", "Eight", "Nine", "Ten",
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"Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen",
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"Sixteen", "Seventeen","Eighteen", "Nineteen", "Twenty" };
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public static void main (String[] parameters)
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{
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// Check the input parameters.
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if (parameters.length != 3) {
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System.out.println("");
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System.out.println("Usage:");
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System.out.println("");
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System.out.println(" JDBCPopulate system collectionName tableName");
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System.out.println("");
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System.out.println("");
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System.out.println("For example:");
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System.out.println("");
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System.out.println("");
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System.out.println(" JDBCPopulate MySystem MyLibrary MyTable");
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System.out.println("");
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return;
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}
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String system = parameters[0];
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String collectionName = parameters[1];
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String tableName = parameters[2];
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Connection connection = null;
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try {
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// Load the IBM Toolbox for Java JDBC driver.
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DriverManager.registerDriver(new com.ibm.as400.access.AS400JDBCDriver());
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// Get a connection to the database. Since we do not
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// provide a user id or password, a prompt will appear.
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//
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// Note that we provide a default schema here so
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// that we do not need to qualify the table name in
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// SQL statements.
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//
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connection = DriverManager.getConnection ("jdbc:as400://" + system + "/" + collectionName);
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// Drop the table if it already exists.
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try {
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Statement dropTable = connection.createStatement ();
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dropTable.executeUpdate ("DROP TABLE " + tableName);
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}
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catch (SQLException e) {
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// Ignore.
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}
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// Create the table.
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Statement createTable = connection.createStatement ();
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createTable.executeUpdate ("CREATE TABLE " + tableName
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+ " (I INTEGER, WORD VARCHAR(20), SQUARE INTEGER, "
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+ " SQUAREROOT DOUBLE)");
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// Prepare a statement for inserting rows. Since we
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// execute this multiple times, it is best to use a
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// PreparedStatement and parameter markers.
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PreparedStatement insert = connection.prepareStatement ("INSERT INTO "
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+ tableName + " (I, WORD, SQUARE, SQUAREROOT) " + " VALUES (?, ?, ?, ?)");
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// Populate the table.
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for (int i = 1; i <= words.length; ++i) {
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insert.setInt (1, i);
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insert.setString (2, words[i-1]);
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insert.setInt (3, i*i);
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insert.setDouble (4, Math.sqrt(i));
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insert.executeUpdate ();
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}
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// Output a completion message.
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System.out.println ("Table " + collectionName + "." + tableName + " has been populated.");
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}
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catch (Exception e) {
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System.out.println ();
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System.out.println ("ERROR: " + e.getMessage());
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}
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finally {
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// Clean up.
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try {
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if (connection != null)
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connection.close ();
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}
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catch (SQLException e) {
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// Ignore.
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}
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}
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System.exit (0);
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}
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}</pre>
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</div>
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</div>
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</body>
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</html>
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